Pekka Enberg
5fbcdbb424
Fix SELECT .. LIMIT not respecting the limit
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Fix the codegen to emit DecrJumpZero in the right place.
2024-06-30 19:11:45 +03:00
Pere Diaz Bou
123f6353f7
core: rename ColumnAggregationInfo -> ColumnInfo
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-06-30 12:48:19 +02:00
Pere Diaz Bou
1cd6101b44
core: add some comments explaining analyze_column
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-06-30 12:48:19 +02:00
Pere Diaz Bou
18c2f5f8d2
core: clean up warnings
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-06-30 12:48:19 +02:00
Pere Diaz Bou
c7d40806fd
core: Avg aggregation function
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Simple implementation for aggregation functions. The code added is
purposely so that we can add things like `CEILING(avg(n))` in the future. Aggregation function
impose a higher level of complexity that requires us to plan ahead
several things:
* simple avg: `select avg(id) from users`
* nested avg: `select ceiling(avg(id)) from users`
* avg with other columns: `select ceiling(avg(id)), * from users` (yes,
this is valid sqllite). For now I'm nullifying extra columns for
simplicity.
* avg with other agg functions: `select avg(id), sum(id) from users`.
This should be supported.
* At last -- Order By is a painful enough case to treat alone (not done
in this pr)
Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-06-30 12:48:19 +02:00
Pekka Enberg
1d4850df37
Fix invalid database path
2024-06-29 17:36:36 +03:00
Pekka Enberg
cc101b1b00
Use larger and more realistic database for testing
2024-06-29 10:03:11 +03:00
Pekka Enberg
4d8e0f1214
core: Clean up translate.rs by moving update_pragma()
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Makes the code flow read better from top to bottom.
2024-06-28 08:44:27 +03:00
Pekka Enberg
2684341bac
Initial pass on deterministic simulator
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The simulator does not do much, but does discover failures on Linux with
io_uring, though, so it's a start.
2024-06-27 18:32:04 +03:00
Pekka Enberg
df230dc830
Fix DecrJumpZero usage in translate_select()
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SQLite special-cases `LIMIT 0` by emitting an explicit `Goto` to avoid
executing any `ResultRow` statements. We, however, hacked around this in
DecrJumpZero but also the placement of the generated instruction.
Let's follow SQLite codegen here. We still need to fix `LIMIT 0`,
though.
2024-06-24 21:43:19 +03:00
Pekka Enberg
6290c8167d
Unify SELECT .. LIMIT handling in translate_select()
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Working towards a saner translate_select(), let's unify `SELECT ..
LIMIT` handling across different types of select statements.
2024-06-24 21:36:34 +03:00
Pekka Enberg
bdbbbda84f
Extract translate_column() function
2024-06-22 09:44:35 +03:00
Pekka Enberg
828fb813a8
core: Fix codegen for rowid alias
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We should emit `Column` bytecode for a primary key, unless it is an alias for a rowid.
2024-06-21 13:10:21 +03:00
Pekka Enberg
8d4d2f32ee
core: Fix INTEGER data type detection
2024-06-21 13:09:43 +03:00
Pere Diaz Bou
427103b199
core,wasm: add missing write procedure to wasm
2024-06-19 20:54:55 +02:00
Pere Diaz Bou
932ae7bf3f
core: update pragma in transalte
2024-06-19 20:37:17 +02:00
Pere Diaz Bou
7e03cc70d0
core: add minimum cache_size
2024-06-19 20:37:17 +02:00
Pere Diaz Bou
1884aab3b8
core: resize page cache
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Abstract page cache with PageCache so that we can call resize inside
refcell
2024-06-19 20:37:17 +02:00
Pere Diaz Bou
53c348402a
core: parse unary and write to disk
2024-06-19 20:37:15 +02:00
Pere Diaz Bou
d795a7a3ba
core: introduce pseudo program with pragma
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Introduced pragma statement parsing and update in memory of default page cache size.
There are some more "improvements" to the print insn procedure — I couldn't decide what was the preferred way in rust to do printing on different int types so I went with the stupidest I could think of at the moment.
2024-06-19 20:32:21 +02:00
Pere Diaz Bou
377073e158
core: I/O write path
2024-06-19 21:26:40 +03:00
Pekka Enberg
ba1ed2ec09
Run I/O loop in benchmarks
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Fixes #50
2024-06-08 08:43:15 +03:00
Pekka Enberg
a3c4efc13a
Random code cleanups
2024-06-08 08:38:11 +03:00
Pekka Enberg
3f722d5827
core: Extract make_record() function
2024-05-09 07:48:49 -03:00
Pekka Enberg
3afc03cc65
Fix String8 opcode handling
2024-05-08 15:51:10 -03:00
Pekka Enberg
5c0f324b3c
Improve EXPLAIN output
2024-05-08 14:22:38 -03:00
Pekka Enberg
7232683dfe
core: Fix benchmark
2024-05-08 11:13:29 -03:00
Pekka Enberg
042e5476f1
Fix source formatting with cargo fmt
2024-05-08 07:18:22 -03:00
Pekka Enberg
08165fc34e
core: SELECT <string> support
2024-05-08 07:18:22 -03:00
Pekka Enberg
707cc53911
Explanation for pager interface
2024-05-07 07:50:42 -03:00
Pekka Enberg
40e5d58cea
Fix RewindAwait branching when cursor is empty
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Even if we have a page, the cursor can still be empty if there are no
records.
2024-05-07 06:46:03 -03:00
Pekka Enberg
5ebf51ae5a
Add tracing to prepare() and query()
2024-05-07 06:38:13 -03:00
Pekka Enberg
a447ea0f49
Dynamic cursor ID allocation
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With sorter, for example, we need more cursors per program.
2024-03-29 09:26:18 +02:00
Pekka Enberg
454b1047ce
Simplify translate_select()
2024-03-29 09:22:02 +02:00
Pekka Enberg
a9eb6918d3
SELECT expression support
2024-03-28 19:41:21 +02:00
Pekka Enberg
3f17ac0e17
Simplify code
2024-03-28 19:32:38 +02:00
Pekka Enberg
9a73ded4fa
Add a Cursor trait and use it
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We need an abstract cursor trait to implement a sorter, for example.
2024-03-28 15:01:52 +02:00
Pekka Enberg
1dd33bedcd
Remove commented out code
2024-03-28 14:33:59 +02:00
Pekka Enberg
88f335db16
Fix SQL identifiers to be case insensitive
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SQLite seems to treat everything as case insensitive so let's do that
too.
Fixes #37
2024-03-27 21:00:47 +02:00
Pekka Enberg
81f003d29f
Extract create_table() function
2024-03-27 20:44:52 +02:00
Pekka Enberg
ed9f3e6d1e
Single-threaded architecture
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Use Rc instead of Arc and replace the concurrent LRU with
single-threaded SIEVE.
Fixes #23
Fixes #29
2024-03-03 12:44:45 +02:00
Pekka Enberg
59822e2c6f
core: Don't depend on pprof on Windows
2024-03-03 11:49:55 +02:00
Pekka Enberg
84a5115d77
core: Add Windows I/O module
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It's a copy of the synchronous I/O module that we use on Darwin. In the
future, let's switch to Windows IOCP API.
2024-03-03 11:34:53 +02:00
Pekka Enberg
e0dc9dc86d
Optimize trace_insn()
2024-01-28 13:14:39 +02:00
Pekka Enberg
3d1d4e5355
core: Make OwnedValue cloning cheaper
2024-01-28 12:56:34 +02:00
Pekka Enberg
07912ee139
Use OwnedRecord::new()
2024-01-28 10:22:22 +02:00
Pekka Enberg
2c55cc797d
cargo clippy --fix
2024-01-28 10:21:38 +02:00
Pekka Enberg
9f733b5a73
Simplify Statement::step()
2024-01-28 10:20:45 +02:00
Pekka Enberg
64213766a2
Remove redundant lifetime parameter from Statement::step()
2024-01-28 10:19:31 +02:00
Pekka Enberg
d5bceaefdb
Remove redundant loop from Statement::step()
2024-01-28 10:18:59 +02:00
